The Keyhole area centers on the reservoir, approximately 14,720 acres of water recreation opportunity. The four seasons are comparatively mild with glorious weather from spring through fall and some of the finest snowmobiling in the state during the winter months. Within sight of Devils Tower, Keyhole State Park is situated along the southeast shore of Keyhole Reservoir and offers excellent fishing for walleye, catfish, small mouth bass and northern pike. Keyhole is also a mecca for both resident and migrating birds of all species. Visitors have the opportunity to view many types of wildlife including mule deer, white tailed deer, and wild turkeys.

• Bird watching: Approximately 225 species of birds can be observed at Keyhole State Park or within a mile of park boundaries. During the summer the most abundant species include the White Pelican, Osprey, Common Yellowthroat and Savannah Sparrow. Birds migrate from the area during the winter. Winter birds that are commonly observed at the park include Bald Eagles, Red and White-Breasted Nuthatches and Red Crossbills. Ask at park headquarters for a complete bird list.